摘要
运用水动力软件HydroStar对一艘半潜船波浪载荷(波浪弯矩和剪力)进行了预报,得到了不同载况下波浪载荷的极值及分布特点,分析了航行状态对波浪载荷长期预报的影响,并与WALCS预报值、规范值进行了比较.结果表明,由于半潜船的特殊性,规范经验公式无法对其波浪载荷作出合理的评估,采用直接算法可以得到较为合理的结果;航向概率分布对波浪载荷长期预报结果影响很大,预报过程中采用零航速的简化方式可以缩短计算时间而且能获得被工程所接受的结果.
The extreme value and distributive character of wave loads of a semi-submerged vessel under different loading conditions were obtained, the effect of navigational status to long term prediction was analyzed emphatically by using the hydrodynamic software HydroStar. The results were compared with the ones calculated by WALCS and Rules. The study shows： the empirical formula can＇t assess the wave loads reasonably because of the particularity of semi-submerged vessel and the direct calcula- tion method has to be adopted; the probability distribution of azimuth has a great effect on long term prediction and a satisfying result in project can be achieved in a short time by a simplified way which the forward speed is zero.
出处
《武汉理工大学学报（交通科学与工程版）》
2016年第1期190-194,共5页
Journal of Wuhan University of Technology（Transportation Science & Engineering）
关键词
半潜船
波浪载荷
直接计算
航行状态
semi-submerged vessel
wave loads
direct calculation
navigational status
